CN100363727C - Parallel electromagnetic six-dimensional vibrating speed sensors - Google Patents
Parallel electromagnetic six-dimensional vibrating speed sensors Download PDFInfo
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- CN100363727C CN100363727C CNB2005100512157A CN200510051215A CN100363727C CN 100363727 C CN100363727 C CN 100363727C CN B2005100512157 A CNB2005100512157 A CN B2005100512157A CN 200510051215 A CN200510051215 A CN 200510051215A CN 100363727 C CN100363727 C CN 100363727C
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Abstract
The present invention belongs to the technical field of mechanical vibration measurement, particularly to a 6 dimension vibration speed sensor. The present invention is characterized in that a vibration ball (4) is connected with six magnetic steel rods (6) through a ball hinge (5). The magnetic steel rods (6) forms a one dimension magnetoelectric wire vibration speed sensing branch through a spring and an electromagnetic sensor (7). The other end of the electromagnetic sensor (7) is connected with a fixing frame (3) through a ball hinge (8) of the fixing frame, and the fixing frame is fixedly connected to an installing seat (1). The six freedom degree space parallel mechanism realizes the decoupling of object wire vibration and angle vibration displacement and the synchronous measurement of rigid space vibration six dimension parameters. On the basis of the electromagnetic induction principle, the sensor converts space six dimension movement of objects into induced electromotive force in a coil, and the induced electromotive force is output. The present invention has the advantages of no need of an additional power supply, large output power, stable performances and wide adaptability of the sensor, etc. The present invention is especially suitable for the vibration detection and the failure diagnosis of large scale equipment.
Description
Technical field
The invention belongs to the mechanical vibration field of measuring technique, relate to a kind of parallel electromagnetic six-dimensional vibrating speed sensors
Background technology
Vibration transducer can be divided into vibration displacement sensor, vibrating speed sensors and vibration acceleration sensor by tested physical quantity, the technology of wherein one dimension line vibration, angular oscillation sensor is ripe, mainly contains eddy current type displacement transducer, magnetoelectric velocity transducer and piezoelectric acceleration transducer.Entered since the nineties, along with developing rapidly of microelectric technique, modern mechanical vibration and shock measurement sensor just towards littler, lighter, more good and cheap, more high reliability and more robust direction develop.And meanwhile, level of processing traditional, the two-dimension vibration sensor is also being updated raising, and this just makes the development of vibration-measuring sensor and application that more wide space has been arranged, and beginning is to the development of the sextuple parameter high-precise synchronization of object vibration direction of measurement.
Line vibration and angular oscillation have been comprised simultaneously the vibration of the machinery and equipment in the real life, in running up etc. as traveling automobile on the steamer in the wave, the rough road.The sextuple parameter of displacement, speed and acceleration that measure to obtain this complex vibration is significant to taking correct vibration absorbing measures and carrying out fault diagnosis etc.But owing to have again under the situation of angular oscillation in the existing line vibration, each parameter influences each other, and is not easy separating and measuring, makes the synchro measure of the sextuple parameter of vibration have big difficulty.At present, the method of domestic and international sextuple vibration survey mainly is to adopt the vibration of inertial acceleration instrumentation line and cooperate inertia gyroscope angle measurement speed, or uses based on the six-dimension acceleration sensor of six-dimension force sensor (CN 1229915A) and the six-dimension acceleration of vibration is measured and obtained vibration velocity by integration method.These two kinds of methods are not the sextuple velocity informations that directly obtains vibration, have the problem of extracting low precision indirectly.Other method is as adopting one dimension or dimension sensor carries out multiple spot, there is the data analysis challenge in multidirectional measurement, particularly at the scene in the test analysis, is difficult to obtain high-precision sextuple vibration information.This shows, the synchro measure that vibrates sextuple speed has crucial meaning, but because the coupling of displacement of the lines and angular displacement, the sensor that the sextuple speed parameter of vibration is directly extracted in feasible development becomes comparatively difficult, has not yet to see relevant research report.
Summary of the invention
The object of the present invention is to provide the sensor of the sextuple speed of a kind of energy synchronous detection object vibration.This sensor can will be that the space oscillations decoupling zero of wired vibration object that angular oscillation is arranged again is transformed into the line vibration of six branches, thereby has realized the synchronous detection of the sextuple speed of object complex vibration.
This six-dimensional vibrating speed sensors; its vibrating ball 4 links to each other with six magnet steel bars 6 by six ball pivots (5); each magnet steel bar 6 inserts and constitutes one dimension magneto-electric line vibration velocity sensing branch in the electromagnetic inductor 7; the other end of each electromagnetic inductor 7 links to each other with the upper and lower annulus of fixed mount 3 by fixed mount ball pivot 8; the following annulus of fixed mount 3 is fixed on the mount pad 1, is equipped with on the mount pad 1 to be used to the shell 2 protecting internal components and shield the external magnetic field.The signal extension line of each electromagnetic inductor 7 is connected on the interface of processor by cable interface 17.Like this, vibrating ball 4, six magneto-electric line vibration velocity sensing branches, and fixed mount 3 connected and composed a six degree of freedom space parallel mechanism by six ball pivots that link to each other with vibrating ball 5 with six ball pivots that link to each other with fixed mount 8.This mechanism has converted the sextuple relative motion of 3 of vibrating ball 4 and fixed mounts the linear movement of the magnet steel bar 6 relative electromagnetic inductors 7 of six branches to, thereby has realized the vibration of object line and the decoupling zero of angular oscillation displacement and the synchro measure that rigid space vibrates sextuple parameter.
Fixed mount 3 is to be formed by connecting by three risers by upper and lower annulus to be the cage type steelframe of one, and fixed mount ball pivot 8 is fixed on respectively on the upper and lower annulus.Vibrating ball 4 is made up of steel shell and lead metal core, and ball pivot 5 and fixed mount ball pivot 8 are accurate spherical linkage, also can be flexible hinge.Shell 2 usefulness metal materials are made.
The bulb of the connecting rod 9 of electromagnetic inductor 7 is the part of ball pivot 5; The bulb of electromagnetic inductor housing 12 is the part of fixed mount ball pivot 8; Magnet steel bar 6 is rigidly connected by connecting rod 9, guiding steel bushing 10 and permanent magnet 11 and is integral; 13 in guiding steel bushing 10 and magnet steel sleeve are slidingly matched for precision; Magnet steel sleeve 13 outside surfaces are provided with tubular coil skeleton 14, twine inductive coil 15 on the coil rack 14; Between right plug 18 and the guiding steel bushing 10 spring 16 is set, between left plug 21 and the guiding steel bushing 10 spring 16 is set; Right tightening cover 19 and coil rack 14 are for being threaded; End cap 20 and right tightening cover 19 be for being threaded, with housing for being slidingly matched; Connecting rod 9 and left plug 21,22 of left tightening covers are clearance fit.
The invention has the beneficial effects as follows: this sensor is based on the principle of space parallel mechanism, the vibration of object line and the decoupling zero of angular oscillation displacement and the synchro measure that rigid space vibrates sextuple parameter have been realized, and because each branch line is induction electromotive force output, have advantages such as not needing additional power source, sensor output power are big, stable performance, wide adaptability, be particularly suitable for the vibration detection and the fault diagnosis of main equipment.
Description of drawings
Accompanying drawing 2 is an one dimension magneto-electric line vibration velocity sensing branch assembling synoptic diagram.
In Fig. 1,1. mount pad, 2 shells, 3. fixed mount, 4 vibrating balls, 5. ball pivot, 6. magnet steel bar, 7. electromagnetic inductor, 8. fixed mount ball pivot.In Fig. 2,9. connecting rod, 10. guiding steel bushing, 11. permanent magnets, 12. electromagnetic inductor housings, 13. the magnet steel sleeve, 14. coil racks, 15. coils, 16. springs, 17. cable interfaces, 18. right plug, 19. right tightening covers, 20. end caps, 21. left plugs, 22. left tightening covers.
Embodiment
Accompanying drawing 1 is one embodiment of the present of invention (see figure 1)s, and mount pad 1 is used for sensor is fixed on the vibrating object, and shell 2 is used to protect internal components and shields the external magnetic field.Fixed mount 3 is to be formed by connecting by three risers by upper and lower annulus to be the cage type steelframe of one, and fixed mount ball pivot 8 is fixed on respectively on the upper and lower annulus, and following annulus links to each other with mount pad 1 by screw.Vibrating ball 4 is made up of steel shell lead metal core.Ball pivot 5 and fixed mount ball pivot 8 are accurate spherical linkage, also can be flexible hinge.Magnet steel bar 6 and electromagnetic inductor 7 structures are seen Fig. 2.Magnet steel bar 6 is rigidly connected by connecting rod 9, guiding steel bushing 10 and permanent magnet 11 and is integral; Electromagnetic inductor 7 is assembled according to Fig. 2 by electromagnetic inductor housing 12, magnet steel sleeve 13, coil rack 14, coil 15, spring 16, cable interface 17, right plug 18, right tightening cover 19, end cap 20, left plug 21 and left tightening cover 22.Wherein, the bulb on the connecting rod 9 is the part of ball pivot 5; The bulb of electromagnetic inductor housing 12 is the part of fixed mount ball pivot; 13 in guiding steel bushing 10 and magnet steel sleeve are slidingly matched for precision; The two ends of spring 16 connect guiding steel bushing 10 and plug 18 respectively; Right tightening cover 19 and coil rack 14 are for being threaded; End cap 20 and right tightening cover 19 be for being threaded, with electromagnetic inductor housing 12 for being slidingly matched; Connecting rod 9 and left plug 21,22 of left tightening covers are clearance fit.During measurement, mount pad 1 usefulness nut is fixed on the vibrating object, during object vibration, mount pad 1 and state decide frame 3 and vibrate together in company with testee.At this moment owing to the effect of inertia and spring 16, vibrating ball 4 relative fixed framves 3 vibrate.This vibration makes magnet steel bar 6 relative electromagnetic inductors 7 move, i.e. permanent magnet to-and-fro movement in magnet steel sleeve 13 on the magnet steel bar 6 makes coil 15 produce induced potentials output.
Claims (8)
1. parallel electromagnetic six-dimensional vibrating speed sensors; it is characterized in that: vibrating ball (4) links to each other with six magnet steel bars (6) by six ball pivots (5); each magnet steel bar (6) inserts and constitutes one dimension magneto-electric line vibration velocity sensing branch in the electromagnetic inductor (7); the other end of each electromagnetic inductor (7) is by on fixed mount ball pivot (8) and the fixed mount (3); following annulus links to each other; the following annulus of fixed mount (3) is fixed on the mount pad (1); be equipped with on the mount pad (1) and be used to the shell (2) protecting internal components and shield the external magnetic field, the induced signal extension line of each electromagnetic inductor (7) is connected on the interface of processor by cable interface (17).
2. parallel electromagnetic six-dimensional vibrating speed sensors according to claim 1 is characterized in that: magnet steel bar (6) is rigidly connected by connecting rod (9), guiding steel bushing (10) and permanent magnet (11) and is integral; For precision is slidingly matched, magnet steel sleeve (13) outside surface is provided with tubular coil skeleton (14) between guiding steel bushing (10) and magnet steel sleeve (13), and coil rack (14) is gone up and twined inductive coil (15).
3. parallel electromagnetic six-dimensional vibrating speed sensors according to claim 2 is characterized in that: right tightening cover (19) and coil rack (14) are for being threaded; End cap (20) and right tightening cover (19) be for being threaded, with electromagnetic inductor housing (12) for being slidingly matched; Between connecting rod (9) and left plug (21), left tightening cover (22) is clearance fit.
4. parallel electromagnetic six-dimensional vibrating speed sensors according to claim 3 is characterized in that: between right plug (18) and left plug (21) and the guiding steel bushing (10) spring (16) is set.
5. parallel electromagnetic six-dimensional vibrating speed sensors according to claim 1 and 2, it is characterized in that: fixed mount (3) is to be formed by connecting by three risers by upper and lower annulus to be the cage type steelframe of one, and fixed mount ball pivot (8) is fixed on respectively on the upper and lower annulus.
6. parallel electromagnetic six-dimensional vibrating speed sensors according to claim 1 and 2 is characterized in that: shell (2) is made with metal material.
7. parallel electromagnetic six-dimensional vibrating speed sensors according to claim 1 and 2 is characterized in that: vibrating ball (4) is made up of steel shell and lead metal core; Ball pivot (5) and fixed mount ball pivot (8) are accurate spherical linkage, also can be flexible hinge.
8. parallel electromagnetic six-dimensional vibrating speed sensors according to claim 7 is characterized in that: the bulb of connecting rod (9) is the part of ball pivot (5); The bulb of electromagnetic inductor housing (12) is the part of fixed mount ball pivot (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100512157A CN100363727C (en) | 2005-03-02 | 2005-03-02 | Parallel electromagnetic six-dimensional vibrating speed sensors |
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| CNB2005100512157A CN100363727C (en) | 2005-03-02 | 2005-03-02 | Parallel electromagnetic six-dimensional vibrating speed sensors |
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| CN1645081A CN1645081A (en) | 2005-07-27 |
| CN100363727C true CN100363727C (en) | 2008-01-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021255308A1 (en) * | 2020-06-15 | 2021-12-23 | Universidad De Zaragoza | Telescopic system for volumetric verification, based on simultaneous laser multilateration |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100523753C (en) * | 2007-02-07 | 2009-08-05 | 燕山大学 | Upper and lower prefastening parallel connection structure six-dimensional force sensor |
| DE102015218180A1 (en) | 2015-09-22 | 2017-03-23 | Zf Friedrichshafen Ag | A megnet field sensor, a support member for supporting a magnetic field sensor, a magnetic field sensor module, and a method of manufacturing a magnetic field sensor |
| CN106771334A (en) * | 2017-03-23 | 2017-05-31 | 南京工程学院 | Flow-speed measurement method |
| CN108693382B (en) * | 2018-04-28 | 2020-05-15 | 北京林业大学 | Parallel six-dimensional acceleration sensor |
| CN110987244B (en) * | 2019-10-08 | 2021-01-29 | 珠海格力电器股份有限公司 | Flat disc type six-dimensional force sensor, detection method and intelligent equipment |
| CN111120560B (en) * | 2019-12-16 | 2021-03-23 | 中国电子科技集团公司第三研究所 | Six-degree-of-freedom vibration isolation structure based on wire mesh |
| CN111650400B (en) * | 2020-06-03 | 2021-05-14 | 西安交通大学 | Miniaturized side surface mounting differential type integrated resonance accelerometer |
| CN111667739B (en) * | 2020-07-15 | 2022-08-12 | 南通职业大学 | Mechanical vibration test teaching device |
| CN113295433B (en) * | 2021-05-20 | 2022-07-22 | 深圳市睿智新能源汽车科技有限公司 | Fault diagnosis system of new energy automobile |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2465160Y (en) * | 2001-02-13 | 2001-12-12 | 南京师范大学 | Differential magnetic and electric relative vibration speed sensor |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2465160Y (en) * | 2001-02-13 | 2001-12-12 | 南京师范大学 | Differential magnetic and electric relative vibration speed sensor |
Non-Patent Citations (1)
| Title |
|---|
| 空间缩放式六自由度并联平台机构及位置分析. 赵铁石，***，王晶，刘乐春，黄真.机器人，第20卷第5期. 1998 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021255308A1 (en) * | 2020-06-15 | 2021-12-23 | Universidad De Zaragoza | Telescopic system for volumetric verification, based on simultaneous laser multilateration |
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Assignee: QINHUANGDAO YANSHAN UNIVERSITY TECHNOLOGY DEVELOPMENT GENERAL CO., LTD. Assignor: Yanshan University Contract fulfillment period: 2009.9.15 to 2015.9.15 contract change Contract record no.: 2009990001179 Denomination of invention: Parallel electromagnetic six-dimensional vibrating speed sensors Granted publication date: 20080123 License type: Exclusive license Record date: 20091023 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.9.15 TO 2015.9.15; CHANGE OF CONTRACT Name of requester: QINHUANGDAO YANSHAN UNIVERSITY SCIENCE AND TECHNOL Effective date: 20091023 |
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Granted publication date: 20080123 Termination date: 20110302 |